git-annex/Types/Distribution.hs
Joey Hess a1730cd6af
adeiu, MissingH
Removed dependency on MissingH, instead depending on the split
library.

After laying groundwork for this since 2015, it
was mostly straightforward. Added Utility.Tuple and
Utility.Split. Eyeballed System.Path.WildMatch while implementing
the same thing.

Since MissingH's progress meter display was being used, I re-implemented
my own. Bonus: Now progress is displayed for transfers of files of
unknown size.

This commit was sponsored by Shane-o on Patreon.
2017-05-16 01:03:52 -04:00

78 lines
2.2 KiB
Haskell

{- Data type for a distribution of git-annex
-
- Copyright 2013, 2017 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Types.Distribution where
import Utility.PartialPrelude
import Utility.Split
import Types.Key
import Key
import Data.Time.Clock
import Git.Config (isTrue, boolConfig)
import Control.Applicative
import Prelude
type GitAnnexVersion = String
data GitAnnexDistribution = GitAnnexDistribution
{ distributionUrl :: String
, distributionKey :: Key
, distributionVersion :: GitAnnexVersion
, distributionReleasedate :: UTCTime
, distributionUrgentUpgrade :: Maybe GitAnnexVersion
}
deriving (Read, Show, Eq)
{- The first line of the info file is in the format old versions of
- git-annex expect to read a GitAnnexDistribution.
- The remainder of the file is in the new format.
- This works because old versions of git-annex used readish to parse
- the file, and that ignores the second line.
-}
formatInfoFile :: GitAnnexDistribution -> String
formatInfoFile d = replace "keyVariant = " "keyBackendName = " (show d) ++
"\n" ++ formatGitAnnexDistribution d
parseInfoFile :: String -> Maybe GitAnnexDistribution
parseInfoFile s = case lines s of
(_oldformat:rest) -> parseGitAnnexDistribution (unlines rest)
_ -> Nothing
formatGitAnnexDistribution :: GitAnnexDistribution -> String
formatGitAnnexDistribution d = unlines
[ distributionUrl d
, key2file (distributionKey d)
, distributionVersion d
, show (distributionReleasedate d)
, maybe "" show (distributionUrgentUpgrade d)
]
parseGitAnnexDistribution :: String -> Maybe GitAnnexDistribution
parseGitAnnexDistribution s = case lines s of
(u:k:v:d:uu:_) -> GitAnnexDistribution
<$> pure u
<*> file2key k
<*> pure v
<*> readish d
<*> pure (readish uu)
_ -> Nothing
data AutoUpgrade = AskUpgrade | AutoUpgrade | NoAutoUpgrade
deriving (Eq)
toAutoUpgrade :: Maybe String -> AutoUpgrade
toAutoUpgrade Nothing = AskUpgrade
toAutoUpgrade (Just s)
| s == "ask" = AskUpgrade
| isTrue s == Just True = AutoUpgrade
| otherwise = NoAutoUpgrade
fromAutoUpgrade :: AutoUpgrade -> String
fromAutoUpgrade AskUpgrade = "ask"
fromAutoUpgrade AutoUpgrade = boolConfig True
fromAutoUpgrade NoAutoUpgrade = boolConfig False